MAX6143AASA25+T

Overview

The MAX6143AASA25+T is a high-precision voltage reference providing a fixed +2.5V output in an 8-pin SO package. It features a maximum temperature coefficient of 3ppm/°C and initial accuracy of ±0.06%. The device accepts input voltages from (VOUT + 2V) up to +40V, draws 340µA supply current, and sources 30mA load current. An active-low shutdown pin reduces current to 0.01µA. A TEMP pin provides a linear voltage proportional to die temperature.

Feature Summary

• Proprietary curvature-correction circuit with laser-trimmed thin-film resistors for low drift
• Integrated linear temperature sensor output proportional to die temperature
• Active-low shutdown capability for ultra-low power consumption
• Stable without external output bypass capacitors

Applications

• High-resolution A/D converters
• D/A converters
• Threshold detectors
• Digital voltmeters

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging rather than tube. Confirm the 'A' grade designation corresponds to the specified 3ppm/°C temperature coefficient and ±0.06% accuracy. Ensure the manufacturer is identified as Analog Devices or Maxim Integrated. Validate RoHS compliance status through official documentation.

Selection Notes

Select this component when a stable 2.5V reference is required alongside integrated temperature sensing capabilities. The wide input voltage range supports high-voltage systems. The absence of required output capacitors simplifies layout in space-constrained designs. Verify that the 30mA sourcing capability meets the specific load requirements of the target application.

Part Context

This part belongs to the MAX6143 family of precision voltage references. The series includes variants with different preset output voltages such as 3.3V, 4.096V, 5.0V, and 10V. The 'A' suffix denotes tighter performance specifications compared to the 'B' grade. All variants share the same 8-pin SO package and functional architecture.

Replacement Considerations

MAX6143AASA25+